From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi0-f46.google.com (mail-oi0-f46.google.com [209.85.218.46]) by dpdk.org (Postfix) with ESMTP id 454A568DD for ; Fri, 19 Aug 2016 02:53:14 +0200 (CEST) Received: by mail-oi0-f46.google.com with SMTP id l203so44997369oib.1 for ; Thu, 18 Aug 2016 17:53:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:from:date:message-id:subject:to; bh=Fa1tYzKCSB97WFQWx8oRaoO60sqHmuahAGXhWEjbiUY=; b=xHa1TEGlmtvzwO84EVfT7d44LJcV1sT5uCJqSZcprl9H24+FpaX7Ex/dN6envZzOXd 8DY7raa2O0dghMg/W2e2uV4AtrNixVK1aaOLiYaqcXzTXOuAYVhd6ekcPPdmMFX7k7p5 1oQqCfn8oHxSJ5EJk5MjkI7l2pL8mZoc3aei4ZIE1L7t8aip08daUG6WXfVMp/uOmzt4 3bqYvgvO07F63Kwjh/LAkiFIWaIs0j/ks513Edj+Oboof1fwXS+6AKQo8SCnrag1d3Nv LYLebhOVdH10B3fy6ScVtcnGNV1rxRDH2vuSgTy6JZhMwM3L8DxqC7VJga/BhOMarKnK SzvQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=Fa1tYzKCSB97WFQWx8oRaoO60sqHmuahAGXhWEjbiUY=; b=dK+w9fYaEtN+q4sYOoljHA8FZ4O6HaFtAU6ZSWkn6H50LHgQZkToAUf/k2X009AHPM MxtyjG/ah5VDr9oNfzyGf+7aNIP98E/RRoo7RwcUfD9UJo7C9lCfz2stYYbnJNPWdllv r1YfLOpI5mN4uzACEOCeZyCIoX6XPEPZZYIwJilhdXCEkgXSFc6ok3vqsMlVtnTiolRw Og6ydhC7adZIqPRvxcp7OxRWPsceSsHbljlAdky3/UxzL9LSx2ekYA6BxrpbLzslml7L hr5serPHDgi4Ud9gz419IZFm94Ixr6fx1FApNLGzTcIsgFALDnsGWqpP5YeFI26elcqj l2Tg== X-Gm-Message-State: AEkoouug/52lJZrOSkSDNFnlpNeqhG5GqwKBF/HDLlCicf3IlTAcWG1bxr9VjPxGzgk33CmuKbxGm2dnudtPoA== X-Received: by 10.157.52.180 with SMTP id g49mr3208083otc.195.1471567993402; Thu, 18 Aug 2016 17:53:13 -0700 (PDT) MIME-Version: 1.0 Received: by 10.202.106.72 with HTTP; Thu, 18 Aug 2016 17:53:12 -0700 (PDT) Received: by 10.202.106.72 with HTTP; Thu, 18 Aug 2016 17:53:12 -0700 (PDT) From: =?UTF-8?B?xJDhu5cgSG/DoG5n?= Date: Fri, 19 Aug 2016 08:53:12 +0800 Message-ID: To: users@dpdk.org Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-users] Performance issue with 82546EB NICs X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Aug 2016 00:53:14 -0000 Hi all, I am using a dual-port Intel 82546EB to run the simple l2fwd application (forward 64byte packets). The result is terrible. My packet generator generates and sends about 320Mb/s, but nearly a half of them are dropped, and only about 160Mb of packets are forwarded every sec. I have also tried to run dpdk-pktgen with this NIC and It can only generate and send about 150Mb/s. My NIC link speed is 1000Mb/s. I am wondering why its performance is so slow like this. Please help me. Any ideas/advices are appreciated. Thanks.